PREFERRED TRENDS IN UNDERGROUND GOLD PLACER MINING AND MINE SUPPORT IN PERMAFROST ZONE

The article gives the grounds for the increase in gold resources in the short term in the Far East Region of Russia by means of starting development of frozen buried residual placers in the north-eastern areas of earlier gold production for the purpose of replenishment of gold and foreign exchange reserves of the country. The background for large-scale re-extraction of gold-bearing minerals from previously assumed noncommercial sites beyond the limits of mined-out fields and from remnant pillars in abandoned placer mines is revealed. It is emphasized that re-extraction of such specific reserves require a special concept and efficient mining technologies, and the engaged mining companies need financial preferences to be granted. In the meanwhile, construction of new mines to develop such deposits is as likely as not in view of a number of reasons. Aiming to handle the most important issue of placer mine support, two methods of making artificial frozen rock pillars are proposed and their implementation is comprehensively described. The article highlights the opportunity to meet some environmental challenges through removal of previous gold mining waste from the ground surface, recovery of the past landscape and relief, organization of a complete cycle of hard geomaterials contained in waste and tailings, and synthesis of continuity in mining-disturbed subsoil.

Keywords

Deep-buried residual frozen placer blocks, permafrost zone, placer mine, gold production, re-extraction, stoping zone, underground excavations, geomaterials, waste dumps.

Issue number: 5
Year: 2018
ISBN:
UDK: 622:624.1
DOI: 10.25018/0236-1493-2018-5-0-49-58
Authors: Kiselev V. V., Khokholov Yu. A., Kaymonov M. V.

About authors: Kiselev V.V. (1), Candidate of Technical Sciences, Senior Researcher, e-mail: gtf@igds.ysn.ru, Khokholov Yu.A. (1), Doctor of Technical Sciences, Leading Researcher, e-mail: khokholov@igds.ysn.ru, Kaimonov M.V. (1), Candidate of Technical Sciences, Senior Researcher, e-mail: gtf@igds.ysn.ru, 1) Chersky Mining Institute of the North, Siberian Branch, Russian Academy of Sciences, 677000, Yakutsk, Russia.

REFERENCES:

1. Tsukerman V. A. Gornyy informatsionno-analiticheskiy byulleten'. 2008, no 8, pp. 171—175.

2. Kozlovskiy E. A. Marksheyderiya i nedropol'zovanie. 2007, no 3, pp. 3—12.

3. Mikhaylov B. K., Vartanyan S. S., Aristov V. V. Otechestvennaya geologiya. 2007, no 3, pp. 14—28.

4. Trubetskoy K. N., Galchenko Yu. P., Kalabin G. V., Proshlyakov A. N. Arktika: ekologiya i ekonomika. 2015, no 3 (19), pp. 54—65.

5. Litvintsev V. S. Fiziko-tekhnicheskiye problemy razrabotki poleznykh iskopayemykh. 2013, no 1, pp. 118—126.

6. Efimov A. P. Puti resheniya aktual'nykh problem dobychi i pererabotki poleznykh iskopaemykh. Dobycha zolota v usloviyakh Kraynego Severa: materialy respublikanskoy nauchno-prakticheskoy konferentsii, posvyashchennoy 90-letiyu zolotodobyvayushchey promyshlennosti RS(Ya) (Ways to Handle Urgent Issues in Mineral Mining and Processing. Gold Production in the Far North: Proceedings of the Republican Scientific–Practical Conference devoted to the 90-th anniversary of the gold mining industry in the Republic of Sakha (Yakutia)), Yakutsk, 2014, pp. 5—12.

7. Kovlekov I. I. Tekhnogennoe zoloto Yakutii (Yakutia’s gold mining waste), Moscow, Izd-vo MGGU, 2002, 303 p.

8. Nikol'skiy A. M., Ordin A. A., Kurilko A. S., Klishin V. I., Kulakov V. N. Bestselikovaya tekhnologiya podzemnoy razrabotki rossypnykh zalezhey Yakutii (Continuous underground gold placer mining in Yakutia), Novosibirsk, Nauka, 2014, 276 p.

9. Markov V. S., Labutin V. N., Elshin V. K. Bezvzryvnaya rakhrabotka mnogoletnemerzlykh rossypnykh mestorozhdeniy podzemnym sposobom (Non-explosive method of underground mining of permafrost placers), Novosibirsk, Izd-vo SO RAN, 2014, 176 p.

10. Sherstov V. A. Zolotodobyvayushchaya promyshlennost' Alyaski (Gold mining industry in Alaska), Yakutsk, YaNTs SO RAN, 1992, 44 p.

11. Athey J. E., Werdon M. B., Twelker E., Henning M. W. Alaska's Mineral Industry 2015. AK: Alaska Division of Geological & Geophysical Survey, Fairbanks, 2016. 57 p.

12. Modern Day Placer Mining in Yukon. URL: http://www.emr.gov.yk.ca/mining/pdf/modern_placer_mining.pdf (accessed 21.02.2018)

13. Skudzzyk F. I., Barker I. C., Walsh D. E., MacDonald R. Applicability of Siberian placer mining technology to Alaska; Final Report for the Alaska Science and Technology Foundation MIRL, Report № 89 University of Alaska Fairbanks, 1991. 77 p.

14. Kiselev V. V., Khokholov Yu. A. Gornyy informatsionno-analiticheskiy byulleten'. 2015, Special edition 30, pp. 173—184.

15. Sherstov V. A. Podzemnaya razrabotka mnogoletnemerzlykh rossypnykh mestorozhdeniy (Underground placer mining in permafrost), Yakutsk, Yakutskiy gosuniversitet, IGDS SO RAN, 2002, 124 p.

16. Sal'manov R. N., Krasnykh S. N. Kolyma. 1987, no 7, pp. 10—13.

17. Patent RU 2474695.

18. Patent RU 2601704.

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